Improvement in sash-fasteners



F. A. GROVE. Sash-Fastener.

No.197,355. Patented Nov. 20,1877.

N-FETDS. PNOTGLITHOGEQPHER. WASHINGTON. D C,

part of this specification.

UNITED STATES PATENT QFFICE.

FULLERTON A. GROVE, OF KIRKSVILLE, MISSOURI.

IMPROVEMENT IN SASH-FASTENERS.

Specification forming part of Letters Patent No. 197,356, dated November20, 1877; application filed July 6, 1877.

To all whom it may concern:

Be it known that I, FULLERTON A. GROVE, of Kirksville, in the county ofAdair and State of Missouri, have invented a new and useful Improvementin Sash-Holders; and I do hereby declare the following to be a full,clear, and exact description of the same, reference being hadto theaccompanying drawings, making The object of my invention is theimprovement of sash-fasteners of the class in which a gravity-bolt isemployed.

The sash-fastener and my improvement will first be described inconnection with the drawings, and then the invention pointed out in theclaim. L

- In the drawing, Figure I is a front vlew of the sash-holder, showingthe bolt shot. Fig. II is a view of the back of the case. Fig. III is aview of the front plate. Fig. IV is a view of the bolt. Fig. V is a Viewof the stops or catches.

' The case or shell is nearly circular in shape, and for ordinary sashesshould be about one and three-quarter inch in diameter, and fromone-fourth to three-eighths of an inch in thickness, and made of brassor. gray casting.

A represents the bolt, which is arc-shaped, with its outeriedgeconforming to the segment of a circle having a diameter of three andahalf inches, which edge should be ground or finished smoothly. The boltmay be cast or cut by dies from suitable sheet metal, and. should have aprojection or knob, a, on the upper .end.

The. back of the case B has formed on the inner or front side thereof agroove, 1), of a shape corresponding to the bolt, and in which thelatter slides.

In order that the lower side abut, on the line of the lower side, 11, ofthe groove.

The pits e in the case are to receive spuds correspondingly located onthe inner side of the front plate 0, which latteris secured to the caseand to the sash by two screws, 0,. which pass through screw-holes in thefront and back of the case. The front plate has a short slot, f, topermit the movement back and forth of the projection or knob a of thebolt. This lock may be applied to the sash on the face of the frame, thebolt in such case catching in notches on the retaining-strip, or it maybe embedded in the sash-frame, so 'as to leave the front plate flushtherewith. In either case it is secured by screws in the holes 0.

To embed the sashholder in the sash-frame, I make a mortise withaboring-bit of the same size of the case B, and locate the mortise sothat the vertical or straight side, d, of the case may be flush with theside edge of the sashframe. When thus applied the bolt catches innotches in the window-frame, and the latternotch, to'raise or lower thesash, its gravity causes it to adjust itself again.

Having described my invention, I claim and desire to secure by LettersPatent- In a sash support and lock having an areshaped gravity-bolt, thefront plate 0, having on its inner side spuds which fit intocorresponding pits e in the case back 13, which lat ter is made in twoparts, as shown, whereby the lower side of the bolt-groove b may besmoothly finished.

FULLERTON A. GROVE. Witnesses:

D. G. Pmnon, W. J. AsnLooK.

